
/*
 Print.cpp - Base class that provides print() and println()
 Copyright (c) 2008 David A. Mellis.  All right reserved.

 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.

 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 Lesser General Public License for more details.

 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 Modified 23 November 2006 by David A. Mellis
 Modified 03 August 2015 by Chuck Todd
 */

#ifndef ARDUINO_BASIC__NO_PRINTF

    #include <stdio.h>

    #include "arduino_basic/print.hpp"


namespace arduino_basic {

    #ifdef fdev_setup_stream

    // Custom implementation of printf borrowed from the teensy core files
    static int printf_putchar(char c, FILE *fp) {
        ((class Print *)(fdev_get_udata(fp)))->write((uint8_t)c);
        return 0;
    }


    int Print::printf(const char *format, ...) {
        FILE f;
        va_list ap;

        fdev_setup_stream(&f, printf_putchar, NULL, _FDEV_SETUP_WRITE);
        fdev_set_udata(&f, this);
        va_start(ap, format);
        return vfprintf(&f, format, ap);
    }


    int Print::printf(const __FlashStringHelper *format, ...) {
        FILE f;
        va_list ap;

        fdev_setup_stream(&f, printf_putchar, NULL, _FDEV_SETUP_WRITE);
        fdev_set_udata(&f, this);
        va_start(ap, format);
        return vfprintf_P(&f, (const char *)format, ap);
    }

    #endif

}  // namespace arduino_basic

#endif